Harmonic balancer rubber hitting the timing cover.

[Richard G.]

I have been working on tracking down the exact issue that causes the rub between the balancer and the timing cover on my 63 340hp motor.



I inspected the crankshaft for excessive end play and found none.
I suspect it it just a hemorrhage of the rubber elastomer.
I attempted to show it in the picture below;



You can see the complete lack of clearance in this picture below;



I recently spoke to a friend of mine with a 340hp and he had the same issue.
He had the harmonic balancer rebuilt when he did the motor.
I made a mistake by not addressing this 60 year old balancer when the motor was apart.
So I am planing on pulling the balancer this winter and getting it rebuilt.
I was planning on using this guy in Oregon as it is close to me.

http://hbrepair.com/

Anyone pulled the balancer on a C2 while in the car?
I do have the tool and a plug to use so the thread inside the crank nose isn't damaged.
Looks fairly straightforward if you pull the fan and shroud?
Any suggestions?
Thanks
Rick

[Donald O.]

Re: Harmonic balancer rubber hitting the timing cover.

I was easily able to pull the HB with the engine in the car.
I had to remove it so I could replace the front seal and timing chain and gears.

Don

[Paul Y.]

Re: Harmonic balancer rubber hitting the timing cover.

I was easily able to pull the HB with the engine in the car.
I had to remove it so I could replace the front seal and timing chain and gears.

Don

Yes, plenty of room to get the job done.